 The stories utilise such settings as Brichester, Goatswood and Clotton - Campbell's equivalent English invented locales comprising the Severn Valley, based upon H. P. Lovecraft's invention of such locales as Arkham, Dunwich, and Kingsport.The title story introduces Campbell's fictitious book of occult lore, the "Revelations of Gla'aki", similar to Lovecraft's "Necronomicon".Most of the contents (three stories omitted) were reprinted, with some of Campbell's later Lovecraftian work, in his 1985 collection "Cold Print".